Title: Problem with the email test Last modified: October 9, 2020 --- # Problem with the email test * Resolved [freddyee](https://wordpress.org/support/users/freddyee/) * (@freddyee) * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/) * I can’t connect it. It was just fine for so long, until I realized of this error. Email and password are correct. Please, help me. * Complete errors depuration: * Versions: WordPress: 5.5.1 WordPress MS: No PHP: 7.3.20 WP Mail SMTP: 2.4.0 * Params: Mailer: smtp Constants: No ErrorInfo: SMTP Error: Could not authenticate. Host: runayaq.com Port: 465 SMTPSecure: ssl SMTPAutoTLS: bool(true) SMTPAuth: bool(true) * Server: OpenSSL: OpenSSL 1.1.1d FIPS 10 Sep 2019 * Debug: Mailer: Otro SMTP SMTP Error: Could not authenticate. * SMTP Debug: 2020-10-09 06:31:05 Connection: opening to ssl://runayaq.com:465, timeout=300, options=array() * 2020-10-09 06:31:05 Connection: opened * 2020-10-09 06:31:05 SERVER -> CLIENT: 220-giow1021.siteground.us ESMTP #5 Fri, 09 Oct 2020 06:31:05 +0000 220-We do not authorize the use of this system to transport unsolicited, 220 and/or bulk e-mail. * 2020-10-09 06:31:05 CLIENT -> SERVER: EHLO [http://www.runayaq.com](http://www.runayaq.com) * 2020-10-09 06:31:05 SERVER -> CLIENT: 250-giow1021.siteground.us Hello [http://www.runayaq.com](http://www.runayaq.com)[ 35.188.129.55]250-SIZE 52428800250-8BITMIME250-DSN250-VRFY250-AUTH LOGIN PLAIN CRAM-MD5250 HELP * 2020-10-09 06:31:05 CLIENT -> SERVER: AUTH CRAM-MD5 * 2020-10-09 06:31:05 SERVER -> CLIENT: 334 PDMyNTU1LjE2MDIyMjUwNjVAZ2lvdzEwMjEuc2l0ZWdyb3VuZC51cz4 = * 2020-10-09 06:31:05 CLIENT -> SERVER: [credentials hidden] * 2020-10-09 06:31:05 SERVER -> CLIENT: 535 Incorrect authentication data * 2020-10-09 06:31:05 SMTP ERROR: Username command failed: 535 Incorrect authentication data * SMTP Error: Could not authenticate. * 2020-10-09 06:31:05 CLIENT -> SERVER: QUIT * 2020-10-09 06:31:05 SERVER -> CLIENT: 221 giow1021.siteground.us closing connection * 2020-10-09 06:31:05 Connection: closed * SMTP Error: Could not authenticate. Viewing 15 replies - 1 through 15 (of 16 total) 1 [2](https://wordpress.org/support/topic/problem-with-the-email-test/page/2/?output_format=md) [→](https://wordpress.org/support/topic/problem-with-the-email-test/page/2/?output_format=md) * [steinolaf](https://wordpress.org/support/users/steinolaf/) * (@steinolaf) * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13512498) * Same problem here… Worked fine for months, suddenly few hours it stopped working. - This reply was modified 5 years, 8 months ago by [steinolaf](https://wordpress.org/support/users/steinolaf/). * [harleec](https://wordpress.org/support/users/harleec/) * (@harleec) * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13512567) * I have the same issue with Siteground hosting. I’m chatting with them now. * [soulshakepower](https://wordpress.org/support/users/soulshakepower/) * (@soulshakepower) * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13512814) * Hi, * Same issue here: I have 5 completely different installations (all hosted [@siteground](https://wordpress.org/support/users/siteground/)) that suddenly have that same issue! * But I can send emails with the same addresses from Gmail and Outlook, which tends to put culprit on WP Mail SMTP. * I’m chatting with their support, so far they confirm all settings fine according to them. [@steinolaf](https://wordpress.org/support/users/steinolaf/) are you on Siteground too? [@freddyee](https://wordpress.org/support/users/freddyee/) looks like you’re on Siteground according to you error log. * I tried SSL and TLS with correct ports, even without authentication, always same issue on all accounts. All are under WP Mail SMTP 2.4.0 * Thank you * [Ciulac](https://wordpress.org/support/users/nick8182/) * (@nick8182) * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13512964) * same problem, always with siteground who told me to try another plugin (easy wp smtp), but always same error. Until yesterday it worked. - This reply was modified 5 years, 8 months ago by [Ciulac](https://wordpress.org/support/users/nick8182/). * [soulshakepower](https://wordpress.org/support/users/soulshakepower/) * (@soulshakepower) * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13513025) * Update from Siteground support: * “There appears to be an issue with the SMTP authentication as several users have already reported it. Our developers are currently working on resolving it, but there is no further information at this point. * We will update you in this ticket as soon as more information is available.” * — * Me for WP Mail SMTP support: I tried to rollback to WP Mail SMTP 2.2.1 and issue persists so indeed it seems a Siteground issue. * I am now using Gmail mailer in WP mail SMTP instead, so my customers can still get emails until this is resolved. * To be continued.. * [Hristo Pandjarov](https://wordpress.org/support/users/hristo-sg/) * (@hristo-sg) * SiteGround Representative * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13513029) * Hristo from SiteGround here. * We’ve implemented an update of our mailing system which resulted in the above reported problem. At the moment we’re reverting the update until we perform additional tests and confirm that it won’t cause such problems. * Plugin Author [Gregor Capuder](https://wordpress.org/support/users/capuderg/) * (@capuderg) * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13513091) * Hi everyone! * Thank you all for reporting this issue and also thank you very much for all the updates, so other SiteGround users will know what is going on. * If someone could verify that it now works OK, after the revert that [@hristo-sg](https://wordpress.org/support/users/hristo-sg/) mentioned, that would be great! * Thank you and have a nice day! * [Hristo Pandjarov](https://wordpress.org/support/users/hristo-sg/) * (@hristo-sg) * SiteGround Representative * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13513106) * I will update the thread once the update is applied on all servers. * [Hristo Pandjarov](https://wordpress.org/support/users/hristo-sg/) * (@hristo-sg) * SiteGround Representative * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13513303) * Package distribution completed, all should be back to normal now 🙂 * [steinolaf](https://wordpress.org/support/users/steinolaf/) * (@steinolaf) * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13513338) * [@soulshakepower](https://wordpress.org/support/users/soulshakepower/) Yes I’m on SiteGround too. * I tested WP Mail SMTP just now, and it is still not working… - This reply was modified 5 years, 8 months ago by [steinolaf](https://wordpress.org/support/users/steinolaf/). * [Hristo Pandjarov](https://wordpress.org/support/users/hristo-sg/) * (@hristo-sg) * SiteGround Representative * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13513344) * Please, contact our support team via the Help Desk if you continue having issues. * [sovabarmak](https://wordpress.org/support/users/sovabarmak/) * (@sovabarmak) * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13513524) * siteground still not working * [harleec](https://wordpress.org/support/users/harleec/) * (@harleec) * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13514787) * It’s working for me as of a few hours ago. * [steinolaf](https://wordpress.org/support/users/steinolaf/) * (@steinolaf) * [5 years, 8 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13516816) * I can also confirm that it is working now 🙂 * [Ciulac](https://wordpress.org/support/users/nick8182/) * (@nick8182) * [5 years, 7 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/#post-13572130) * [@hristo-sg](https://wordpress.org/support/users/hristo-sg/) * hello, just now the same problem occurred again. * “Could not connect to the SMTP host.” * problem only with port 465 and ssl, with port 25 it works - This reply was modified 5 years, 7 months ago by [Ciulac](https://wordpress.org/support/users/nick8182/). - This reply was modified 5 years, 7 months ago by [Ciulac](https://wordpress.org/support/users/nick8182/). - This reply was modified 5 years, 7 months ago by [Ciulac](https://wordpress.org/support/users/nick8182/). Viewing 15 replies - 1 through 15 (of 16 total) 1 [2](https://wordpress.org/support/topic/problem-with-the-email-test/page/2/?output_format=md) [→](https://wordpress.org/support/topic/problem-with-the-email-test/page/2/?output_format=md) The topic ‘Problem with the email test’ is closed to new replies. * ![](https://ps.w.org/wp-mail-smtp/assets/icon-256x256.png?rev=1755440) * [WP Mail SMTP by WPForms - The Most Popular SMTP and Email Log Plugin](https://wordpress.org/plugins/wp-mail-smtp/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-mail-smtp/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-mail-smtp/) * [Active Topics](https://wordpress.org/support/plugin/wp-mail-smtp/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-mail-smtp/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-mail-smtp/reviews/) * 16 replies * 8 participants * Last reply from: [soulshakepower](https://wordpress.org/support/users/soulshakepower/) * Last activity: [5 years, 7 months ago](https://wordpress.org/support/topic/problem-with-the-email-test/page/2/#post-13572427) * Status: resolved